Do DLAB Scores Expire?
DLAB scores do not expire. Personnel who fail to qualify for language training with a score of 95 or higher on the initial test may retest after a 6 month waiting period.
Someone failing the test or getting a low score can always retake the DLAB but only after a wait of 6 months. For most service members, this is too long and will cause them to miss the deadline for submitting their scores.
Defense Language Aptitude Battery - Wikipedia
How do you become a DLAB in the army?
You need to schedule the DLAB (Defense Language Aptitude Battery) before you get to your MEPS (Military Entrance Processing Station). You may take the test only if you're trying to get a MOS/AFSC/rating that specifically requires language training, such as a linguist, cryptology or a signals intelligence MOS.
Entering the Military: DLAB
What is a good score on the DLAB test?
The Army standard for DLAB scores includes a requirement to score 95 or better on the initial test. Those who do not score 95 or better are welcome to retest again following a six-month waiting period.
Defense Language Aptitude Battery (DLAB) Testing - MilitaryBenefits.info
What is considered a high DLAB score?
Qualifying Scores The highest possible score on the DLAB is 176.
Defense Language Aptitude Battery - Moody FSS